Looks fixable. If not i will ptobably open up and slide an aquarium in its place. Fingers crossedIt really turned out great. Hope you didn't have much damage from the sump leak.
It is probably sealed at this point. Hard to mix small amounts of pond shield so I just dumped the rest on the bottom. Im not stoping here, will coat with flex seal. If that dosnt do it>>Terrarium.Im thinking of starting a 75 african tank at work. I was admiring your fish!Good to see everything is all fixed up. The discus are looking great too!